[R] histogram-like barplot? (or reverse?)

[Nick Matzke]

Hi,

I have a simple task I can't figure out.  I'd like to take 
some measurements I made, e.g.:

year (y-axis)
1
2
3
4
5
6

counts (x-axis)
10
10
20
30
40
50

And then, make a barplot with the x-axis ticks (representing 
the borders between years) between the bars.

However, barplot seems to force you to make the x-axis 
arbitrary categories.  I want it to be continuous (as in a 
histogram) as I have to bin the data by a series of 
different time periods (1 year intervals, 2 year intervals, 
etc.) and then plot several of the histograms/barplots in a 
series of figures to show how differing resolution changes 
the pattern.

I have calculated the counts manually, but I can't just pipe 
the raw data into hist due to its weirdness (species 
stratigraphic ranges).

Basically I want a scatterplot to plot x,y data points, 
except with vertical bars instead of points.

I've tried hacking hist() but so far without luck.

Any help greatly appreciated!

Nick


-- 
====================================================
Nicholas J. Matzke
Ph.D. Student, Graduate Student Researcher
Huelsenbeck Lab
Center for Theoretical Evolutionary Genomics
4151 VLSB (Valley Life Sciences Building)
Department of Integrative Biology
University of California, Berkeley

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Principles of Phylogenetics: Systematics
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